Article
Environmental Sciences
Wenhuic Liu, Teng Ma, Yao Du, Xiancang Wu, Liuzhu Chen, Junqi Li
Summary: Dissolved organic matter (DOM) plays a crucial role in the cycling and toxicity of heavy metals in aquatic systems. This study analyzed the source, composition, and structural characteristics of DOM in both surface water and bottom sediments of the Le'an River and its tributaries. The study also evaluated the ecological risks of three heavy metals (Cu, Pb, and Zn) based on DOM characteristics and in situ data. The results showed that sediment DOM was more aromatic and hydrophobic than surface water DOM. Surface water had a higher potential risk of heavy metal release compared to sediments. High-risk areas were mainly found in the upper and middle reaches of the Le' an River due to mining and smelting industries. This study established a new technique for predicting the ecological risk of aquatic systems based on DOM characteristics in water and sediments.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2022)
Article
Environmental Sciences
Meron Talu, Asmerom Seyoum, Berhanu Yitayew, Adane Mihret, Abraham Aseffa, Jana Jass, Gezahegne Mamo, Per-Erik Olsson
Summary: Pollution of the aquatic environment is a global problem, and it is difficult to assess due to the complex nature of sublethal effects caused by pollutants. This study used gene expression analysis to determine the effects of contaminants in the Akaki river, and found that exposure to the river water altered the expression of genes involved in various biological pathways.
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2022)
Article
Green & Sustainable Science & Technology
Naveed Munir, Muhammad Jahangeer, Abdelhakim Bouyahya, Nasreddine El Omari, Rokia Ghchime, Abdelaali Balahbib, Sara Aboulaghras, Zahed Mahmood, Muhammad Akram, Syed Muhammad Ali Shah, Ivan N. Mikolaychik, Marina Derkho, Maksim Rebezov, Baskar Venkidasamy, Muthu Thiruvengadam, Mohammad Ali Shariati
Summary: Heavy metals play a crucial role in maintaining the homeostasis of living cells, but they can also have negative effects on the environment and organisms, impacting crop quality and human health. Studies have shown that vegetables and fruits grown in polluted soil accumulate higher levels of heavy metals, which can reduce the benefits of consuming these foods. Further investigation is needed to understand the mechanisms by which heavy metals affect human health and to establish both the positive and negative effects of heavy metals.
Article
Biochemistry & Molecular Biology
Hasan Can, Ibrahim Ilker Ozyigit, Merve Can, Asli Hocaoglu-Ozyigit, Ibrahim Ertugrul Yalcin
Summary: Intensive production of fruits and vegetables leads to heavy metal accumulation, raising concerns about food safety and supply. This research in Kyrgyzstan analyzed mineral nutrient and heavy metal concentrations in commonly consumed fruity vegetables, finding red capia pepper to have the highest daily nutritional value. Despite variations in elemental content, all vegetables were within safe limits for consumption.
BIOLOGICAL TRACE ELEMENT RESEARCH
(2022)
Article
Geochemistry & Geophysics
Joanna Jaskula, Mariusz Sojka, Michal Fiedler, Rafal Wrozynski
Summary: The pollution of river bottom sediments by heavy metals is a significant environmental issue resulting from human activities. A study on the Warta River in Poland showed that heavy metal pollution was heavier in 2016 compared to 2017, with lower ecological hazard in the latter year. Cluster analysis revealed distinct groups of sample collection stations with similar chemical properties, suggesting that the concentrations of heavy metals may be influenced by urbanized areas and river processes.
Article
Environmental Sciences
Peng Li, Jingyi Zhang, Xingyue Sun, Evgenios Agathokleous, Guiling Zheng
Summary: In this study, the responses of the plant Tillandsia usneoides to different atmospheric lead concentrations were investigated. The results showed three different dose-response relationships, indicating diverse adaptation mechanisms of plants to stress.
SCIENCE OF THE TOTAL ENVIRONMENT
(2022)
Article
Water Resources
Hala E. Ghannam
Summary: The study found that levels of Fe, Pb, and Mn in the water of the Nile River in the Cairo region exceeded the allowed limits, while Cu and Zn levels were within limits. In fish muscle, Fe and Cu levels were within permissible limits, but Mn, Zn, and Pb exceeded the limits. The study also highlighted the importance of monitoring heavy metal concentrations in aquatic ecosystems and the potential health risks posed by certain metals like Pb to habitual fish eaters.
APPLIED WATER SCIENCE
(2021)
Article
Environmental Sciences
Faiza Hassan, Faisal Mehmood, Qamar uz Zaman, Dure Najaf Lqball, Roeya Rehman, Farheen Aslam, Sadia Sagar, Nasir Masood, Arif Naziri, Munawar Iqbal
Summary: This study found that vegetables irrigated with different water sources had high levels of heavy metals, especially those irrigated with sewage water and industrial wastewater. These vegetables were of poor quality and unfit for human health.
POLISH JOURNAL OF ENVIRONMENTAL STUDIES
(2021)
Article
Environmental Sciences
Naveen Radhakrishnan, Sonam Taneja, Saurav Ambastha, Harsh Pipil, Anil Kumar Haritash
Summary: Sediment quality assessment is important for evaluating the quality of rivers and this study focuses on assessing heavy metal concentration in size-fractionated sediments of River Ganga and identifying sources of contamination. The results show that the sediments are contaminated and enriched with toxic metals, with Chinyalisaur, Devaprayag, and Rishikesh being classified as pollution hotspots. Natural sources contribute to aluminum and iron, while anthropogenic sources contribute to chromium, zinc, lead, nickel, copper, and cadmium. Immediate interventions are needed to control further contamination by restricting wastewater discharge into River Ganga.
MARINE POLLUTION BULLETIN
(2023)
Article
Green & Sustainable Science & Technology
Mohammad Nishat Akhtar, Mohd Talha Anees, Emaad Ansari, Jazmina Binti Ja'afar, Mohammed Danish, Elmi Abu Bakar
Summary: This study assessed heavy metal pollution in river water during the COVID-19 pandemic and post-pandemic period. The results showed variable concentrations of heavy metals at different depths, possibly due to sinking tendencies or anthropogenic sources. However, all concentrations were within permissible limits, which may be attributed to reduced anthropogenic activities during the pandemic.
Article
Environmental Sciences
Muhammad Saiful Islam, Zahidul Islam, Md. Rashed Hasan
Summary: This study investigated the occurrence and characteristics of microplastics (MPs) in the surface water and sediment of the Buriganga river in Bangladesh. The results showed that MPs were widely distributed in the river, mainly in fragment form, with polypropylene (PP) being the most common polymer type. The MPs were contaminated by heavy metals and the pollution load index (PLI) indicated a higher risk level in downstream areas influenced by anthropogenic activities.
Article
Environmental Sciences
Wawan Budianta
Summary: This study revealed significant heavy metal pollution in the stream sediment of the Tajum River, primarily due to artisanal mining activities. The distribution and mobility of heavy metals are influenced by mining activities, with Zn and Cd showing lower mobility in sediment.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2021)
Article
Environmental Sciences
Roberto Jose Maria Serafini, Silvana Arreghini, Horacio Esteban Troiani, Alicia Rosa Fabrizio de Iorio
Summary: The aim of this study was to assess Cu, Zn, and Cr pollution in the Matanza-Riachuelo river in Argentina and to evaluate tolerance strategies and toxic effects in aquatic macrophytes. The results showed that the highest concentrations of heavy metals were found in the lower basin of the river, while the upper basin was mainly affected by lithogenic origin metals. Sagittaria montevidensis adapted to the polluted environment through heavy metal exclusion mechanisms, while Eichhornia crassipes exhibited tolerance through root compartmentalization.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Biochemistry & Molecular Biology
Hasan Can, Ibrahim Ilker Ozyigit, Merve Can, Asli Hocaoglu-Ozyigit, Ibrahim Ertugrul Yalcin
Summary: This study examined the concentrations of trace/heavy metals in various leafy vegetables from Kyrgyzstan and evaluated the associated health risks. The findings showed that airborne pollution has impacted the mineral contents of vegetables, potentially affecting human health. Further research and international comparisons will be important for global data on this topic.
BIOLOGICAL TRACE ELEMENT RESEARCH
(2021)
Article
Environmental Sciences
Fabrizio Monaci, Stefania Ancora, Nicola Bianchi, Ilaria Bonini, Luca Paoli, Stefano Loppi
Summary: In this study, native and transplanted aquatic moss specimens were used to assess metal contamination in a river affected by acidic and metalliferous drainage from mining areas. The analysis identified patterns of contamination in the watershed and highlighted attenuation of metal availability downstream. Differences in metal accumulation capacities between native and transplanted moss raise questions about element uptake and retention mechanisms.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
